根据净化需求来分，空气净化器可以分为：
According to the demand for purification, air purifiers can be divided into:
（1）纯净化型。如果位于室内湿度较适中的地区，或者对空气质量要求不太高，则选购纯净化型的空气净化器就满足需求了。
(1) Pure purification type. If it is located in an area with moderate indoor humidity, or the requirement for air quality is not too high, then the purely purified air purifier can meet the demand.
（2）加湿净化型。如果是位于较干燥的地区、经常开空调被空调抽湿而造成室内空气干燥、或者对空气质量要求较高，则选购一台带有加湿净化功能的空气净化器，将是最适合的选择。
(2) Humidifying and purifying type. If it is located in a dry area, often open air conditioning is dehumidified by air conditioning, resulting in indoor air drying, or higher requirements for air quality, then choose an air purifier with humidification and purification function, will be the most suitable choice.
（3）智能型。如果喜欢自动化操作、智能监控空气质量、或者体现高贵品味、或者用来送礼需要更体面，则选购一台智能型的空气净化器便是最佳选择。
(3) Intelligent. If you prefer automation, intelligent monitoring of air quality, or embody noble tastes, or need more decency for gifts, then choose an intelligent air purifier is the best choice.
（4）车载型。如果是用于轿车内空气净化，需要专门净化汽车异味、汽车甲醛等车内污染，并能够专门放置于车内的空气净化器，所以，最优选择为车载型空气净化器。
(4) Vehicle type. If it is used to purify the air in cars, it is necessary to specially purify the car odor, formaldehyde and other vehicle pollution, and can be placed in the car air purifier, so the best choice is the car-mounted air purifier.
（5）桌面型。即放置于桌面，净化桌面周围一定范围内的空气，保护桌面附近人的健康的空气净化器。如果经常坐在电脑前、办公桌前、或者书桌前，但是所处的室内面积不小，或者是公共场所，自己掏钱买一台大型的空气净化器并不划算，也不时尚，则桌面型的空气净化器就是较好的选择。
(5) Desktop type. That is to say, it is placed on the desktop to purify the air in a certain range around the desktop and to protect the healthy air purifier of people near the desktop. If you often sit in front of the computer, desk, or desk, but the indoor area is not small, or in public places, it is not economical and fashionable to pay for a large air purifier, then the desktop air purifier is a better choice.